I think you answered your own question. We have to define success according to several different attributes. If the country as a whole has certain kinds of targets, you have to ask how it's doing according to those targets. At the same time, you have to ask how we're doing with respect to our economic viability. Is the path that we're proceeding on economically successful? Are we better off both economically and socially? There will never be a single number or a single way of defining success, but in the long run, we're aiming for a future that's both environmentally and economically sustainable. We always have to be asking ourselves how we're doing. Are we happier now? Are we richer, not just a dollars sense but in a social sense, than we were a few years ago?
On April 21st, 2009. See this statement in context.